1. At the foot of the rugged road, there is a large crack. 脚下的路有高低不平的地方，有裂缝很大的地方。
2. Some of the mountains were very rugged, and their scale was deceptive. 一些山区是非常坚固的，而且其规模是欺骗性的。
3. A traveler on a long journey passes through now a broad, level plain, now a rugged, hazardous road. 一个长途旅行者会有时行走于宽广的平原，有时行走与崎岖险恶的道路。
英英解释
adj.
1. sturdy and strong in constitution or construction; enduring
2. topographically very uneven
3. rocky and steep
4. very difficult; severely testing stamina or resolution
